diff options
| -rw-r--r-- | arch/x86/kvm/mmu/tdp_mmu.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c index af60922906ef..7f63e1a704e3 100644 --- a/arch/x86/kvm/mmu/tdp_mmu.c +++ b/arch/x86/kvm/mmu/tdp_mmu.c @@ -941,13 +941,17 @@ static bool tdp_mmu_zap_leafs(struct kvm *kvm, struct kvm_mmu_page *root, flush = true; } - rcu_read_unlock(); - /* - * Because this flow zaps _only_ leaf SPTEs, the caller doesn't need - * to provide RCU protection as no 'struct kvm_mmu_page' will be freed. + * Need to flush before releasing RCU. TODO: do it only if intermediate + * page tables were zapped; there is no need to flush under RCU protection + * if no 'struct kvm_mmu_page' is freed. */ - return flush; + if (flush) + kvm_flush_remote_tlbs_with_address(kvm, start, end - start); + + rcu_read_unlock(); + + return false; } /* |